This is a list of things to check in elements. 1. Add a "Element-Checklist-Version: 1" comment This comment is to indicate which items on this checklist have been checked, so that future checkers can skip things that you've already carefully checked. This number should obviously be updated whenever you do additional checks. Ideally, you should not do checks out of order, but using "1, also 4-6" is acceptable. 2. Each pad should have a pad template Create and register a pad template to the element class. 3. config.h Make sure that each .c file includes config.h (conditionally on HAVE_CONFIG_H). Make sure that each .h file does _not_ include config.h.